Subj : src/sbbs3/getmsg.cpp
To   : Git commit to main/sbbs/master
From : Rob Swindell (on Debian Linux)
Date : Tue Sep 29 2026 15:57:27

https://gitlab.synchro.net/main/sbbs/-/commit/c9ab235a137b8a83e8311db7
Modified Files:
	src/sbbs3/getmsg.cpp
Log Message:
Message listings: don't emit control chars from UTF-8 header fields

Converting a UTF-8 header field to CP437 can yield a control character:
U+263A (white smiling face) maps to 0x01, i.e. Ctrl-A. Since a81d979492
(teeth-19-temp, 2026-07-28) the message/mail listings pass the converted
fields through bputs(), which interprets such bytes rather than displaying
them. A subject ending in U+263A put "\1\r\n" at the end of its line: the
Ctrl-A consumed the CR (toggling CON_ECHO_OFF for users without flag M),
and the bare LF left the column at the P_TRUNCATE limit, so the entire next
listing line was truncated to nothing.

msghdr_field() now replaces any control character in the converted field
with the inverted question mark used for unsupported code points.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
--- SBBSecho 3.37-Linux
 * Origin: Vertrauen - [vert/cvs/bbs].synchro.net (1:103/705)

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